Slashdot Mirror

← Back to Stories (view on slashdot.org)

Microholography Could Lead to 500 GB Discs

Posted by Zonk on from the what-a-great-word dept.

angrykeyboarder writes "Scientists have discovered a way to fit 500 GB of data onto DVD-sized discs. These discs would be created with a process called 'microholography, which combines multilayer storage of data with holographic imagery. From the article: 'Microholography allows data to be stored in three dimensions. The technology works by replacing the two-dimensional pit-land structures currently found on CDs and DVDs with microgratings, which are holographically induced using two laser beams. In other words, instead of recording to a series of bumps and pits like standard CDs, the new technology creates three-dimensional holographic grids that can be used for reading and writing data throughout the physical structure of the disc.'"

9 of 158 comments (clear)

  1. Not again. by Anonymous Coward · · Score: 5, Insightful

    Please no. Can someone tell them to stop working on CDs already? Seriously, HD-DVD is no more than a smaller vinyl. We've got the same technology for over 100 years and they're still trying to "improve" it?
    Can someone already remove all the moving (spinning) parts of my laptop? I really do not see the point of including 3 different motors in a XXI century technology.

    1. Re:Not again. by UCSCTek · · Score: 5, Insightful

      The fact that moving parts reduce cost by exploiting symmetry is hard to beat. Either you have one/several reader/writer that can move around to access the bits => cheaper, or you hardwire billions into the storage media => more stable.

  2. I miss minidisc by misanthrope101 · · Score: 4, Insightful
    I wish this type of tech would develop into something in the form factor of the minidisc. I still have my music mindiscs, some of them about 10 years old. There's something about that size, the protective case, and even the colors that makes the form factor interesting. I'd love to be able to have a ~300GB Truecrypt container on a rewritable minidisc-type thing.

    I've always found DVDs/CDs too large. Yes, they make mini-cdrs and mini-dvds (I used to have a Sony CD Mavica) but they don't have the protective case the minidiscs had. Some things are just ergonomically right, and I regret that we didn't go a little further in that direction.

  3. Data. by Devv · · Score: 3, Insightful

    More storage makes it easier to tak backups but with more storage I will also store more data and then the backups will get larger and.. :(

    --
    +1 Agree -1 Disagree
  4. Good point by Uruz+7 · · Score: 5, Insightful

    He has a good point. The tech seems cool and all especially for long term storage but solid state is the real future. Battery life is still pretty poor for most devices and many people are moving away from the desktop. I personally don't own a desktop anymore and just hook my laptop up to a keyboard, monitor, and mouse when at home or work. I foresee the desktop dying except for hardcore gamers and servers. If I'm correct then spinning media doesn't make sense. Motors drain battery life and increase latency while throwing in a mechanical cog that can fail.

  5. No it won't by MarkoNo5 · · Score: 4, Insightful

    Come on, we get these announcements every few weeks, but nobody ever delivers a product. This isn't even news for nerds, it is just vaporware. Wake me up when they create a product that I can actually buy.

  6. New disks... by g0dsp33d · · Score: 3, Insightful

    I hope they have two new competing formats!

    Seriously though, they have been talking about huge storage disks since we discovered round plastic circles. Yeah, they've been getting higher data densities, but if you look at the progression of other storage formats (especially hard drives) optical is just not keeping up. By the time we get 500Gb disks, they'll sound to us much like yesteryear's 40Gb disks sound to us now compared to our 500+Gb hard drives.

    --
    lol: You see no door there!
  7. Easy backups by mangu · · Score: 4, Insightful
    If you scratch one of these you lose 500GB of data, just as with any other 500GB disk. But the fact that you can record 500GB in a CD-like disk means that you can make several copies and store them in separate places.


    Not very easy to scratch all the disks at the same time if one is in your office, another in your car and the other at your cousin's place.

  8. One problem... BANDWIDTH! by ronhip · · Score: 3, Insightful

    The only problem I see is that at a rate of 200Mb/sec as stated in the article, it would take over 11 hours to fill a 1TB disk!